STC SA4-640
FAA DRS lists SA4-640 as Current · Reissued, held by John P. Warren, for Cessna Aircraft 120, Cessna Aircraft 140, and Cessna Aircraft 140A. Recorded change: Installation of a Lycoming O-290-D2 engine and Sensenich M74DM propeller. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4-640 identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: Cessna Aircraft 120, Cessna Aircraft 140, and Cessna Aircraft 140A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
Related engine and powerplant STCs
Installation of Swing Type Engine Mount.
FAA holder: Classic Aircraft Services Inc
Fabricate and install engine mount to accept Continental Aircraft engine C-85-12 rated at 85 H.P. at 2575 RPM.
FAA holder: Classic Aircraft Services Inc